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Marquise|Natural|GIA

0.64ct D SI2 Marquise Natural Diamond

VG • D/SI2 • GIA 5231445809

Certificate GIA 5231445809

Diamond specifications and retailer prices

From $1,748 AUD
$1,228 USD
As of October 31, 2026
Save $874 AUD (33%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $2,622 AUD at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

About this 0.64ct natural marquise diamond

This 0.64ct natural marquise sits in the half to three-quarter carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5231445809. Listed at 4 retailers as of October 31, 2026, with prices from $1,748 to $2,622, a $874 spread on the same certified stone. 77 Diamonds lists it at $2,622. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.64
Carat
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5231445809
Dimensions9.53 × 4.45 × 2.69 mm
L/W Ratio2.14
Top View
9.53 mm4.45 mm0.64 ctD / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 5231445809
Side View
Table 54.0%CrownGirdle: THN-VTKPavilionCulet: Very SmallDepth 60.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $2,622 AUD|Low: $1,748 AUD|High: $2,626 AUD|Avg: $2,044 AUD|+2.3%
77 Diamonds
Retailer 2
Retailer 3
November 1, 2026
Retailer 3$1,754 AUD
Retailer 2$1,774 AUD
77 Diamonds$2,622 AUD

32 data points across 3 retailers

4 retailers$1,748 AUD to $2,622 AUD

B+
Cheapest Retailer
-
$1,748 AUD
$1,228 USD
Retailer 2
-
$1,754 AUD
$1,232 USD
View
Price last confirmed 70 days ago
B+
Retailer 3
-
$1,774 AUD
$1,246 USD
View
Most Expensive
B
77 Diamonds
MQDHGDBVQ3PX · Nov 1
$2,622 AUD
£1,450 GBP
View
3 more retailers have this diamond
Prices start from $1,748 AUDSave up to $874 AUD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
0.64ct Marquise
$1,748 AUD